Table 3.
Patient clinical characteristics of gastric cancer with bone metastases in the train set and test set.
| Group | Overall | Train set | Test set | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Status | Alive | Death | P-value | Alive | Death | P-value | Alive | Death | P-value |
| N | N=29 | N=946 | N=21 | N=663 | N=8 | N=283 | |||
| Age: | 0.025 | 0.015 | 0.734 | ||||||
| No | 19 (65.5%) | 405 (42.8%) | 15 (71.4%) | 281 (42.4%) | 4 (50.0%) | 124 (43.8%) | |||
| Yes | 10 (34.5%) | 541 (57.2%) | 6 (28.6%) | 382 (57.6%) | 4 (50.0%) | 159 (56.2%) | |||
| Sex: | 0.929 | 1 | 0.716 | ||||||
| Male | 19 (65.5%) | 644 (68.1%) | 14 (66.7%) | 452 (68.2%) | 5 (62.5%) | 192 (67.8%) | |||
| Female | 10 (34.5%) | 302 (31.9%) | 7 (33.3%) | 211 (31.8%) | 3 (37.5%) | 91 (32.2%) | |||
| Race: | 0.004 | 0.015 | 0.26 | ||||||
| White | 17 (58.6%) | 722 (76.3%) | 12 (57.1%) | 516 (77.8%) | 5 (62.5%) | 206 (72.8%) | |||
| Black | 1 (3.45%) | 89 (9.41%) | 1 (4.76%) | 58 (8.75%) | 0 (0.00%) | 31 (11.0%) | |||
| Other | 11 (37.9%) | 135 (14.3%) | 8 (38.1%) | 89 (13.4%) | 3 (37.5%) | 46 (16.3%) | |||
| Marital_status: | 0.124 | 0.145 | 0.718 | ||||||
| No | 16 (55.2%) | 371 (39.2%) | 12 (57.1%) | 258 (38.9%) | 4 (50.0%) | 113 (39.9%) | |||
| Yes | 13 (44.8%) | 575 (60.8%) | 9 (42.9%) | 405 (61.1%) | 4 (50.0%) | 170 (60.1%) | |||
| Site: | 0.126 | 0.112 | 0.394 | ||||||
| Other | 18 (62.1%) | 467 (49.4%) | 12 (57.1%) | 331 (49.9%) | 6 (75.0%) | 136 (48.1%) | |||
| Cardia | 7 (24.1%) | 394 (41.6%) | 5 (23.8%) | 274 (41.3%) | 2 (25.0%) | 120 (42.4%) | |||
| Gastric antrum | 4 (13.8%) | 85 (8.99%) | 4 (19.0%) | 58 (8.75%) | 0 (0.00%) | 27 (9.54%) | |||
| Grade: | 0.649 | 0.771 | 0.234 | ||||||
| I | 0 (0.00%) | 13 (1.37%) | 0 (0.00%) | 7 (1.06%) | 0 (0.00%) | 6 (2.12%) | |||
| II | 3 (10.3%) | 151 (16.0%) | 2 (9.52%) | 108 (16.3%) | 1 (12.5%) | 43 (15.2%) | |||
| III | 25 (86.2%) | 764 (80.8%) | 19 (90.5%) | 534 (80.5%) | 6 (75.0%) | 230 (81.3%) | |||
| IV | 1 (3.45%) | 18 (1.90%) | 0 (0.00%) | 14 (2.11%) | 1 (12.5%) | 4 (1.41%) | |||
| AJCC_T: | 0.715 | 0.561 | 0.621 | ||||||
| T1 | 6 (20.7%) | 181 (19.1%) | 4 (19.0%) | 117 (17.6%) | 2 (25.0%) | 64 (22.6%) | |||
| T2 | 2 (6.90%) | 37 (3.91%) | 2 (9.52%) | 29 (4.37%) | 0 (0.00%) | 8 (2.83%) | |||
| T3 | 4 (13.8%) | 132 (14.0%) | 2 (9.52%) | 91 (13.7%) | 2 (25.0%) | 41 (14.5%) | |||
| T4 | 17 (58.6%) | 596 (63.0%) | 13 (61.9%) | 426 (64.3%) | 4 (50.0%) | 170 (60.1%) | |||
| N: | 0.345 | 0.149 | 1 | ||||||
| N1 | 25 (86.2%) | 700 (74.0%) | 19 (90.5%) | 498 (75.1%) | 6 (75.0%) | 202 (71.4%) | |||
| N2 | 1 (3.45%) | 47 (4.97%) | 1 (4.76%) | 27 (4.07%) | 0 (0.00%) | 20 (7.07%) | |||
| N3 | 3 (10.3%) | 199 (21.0%) | 1 (4.76%) | 138 (20.8%) | 2 (25.0%) | 61 (21.6%) | |||
| Surgery: | 1 | 0.616 | 1 | ||||||
| No | 28 (96.6%) | 907 (95.9%) | 20 (95.2%) | 634 (95.6%) | 8 (100%) | 273 (96.5%) | |||
| Yes | 1 (3.45%) | 39 (4.12%) | 1 (4.76%) | 29 (4.37%) | 0 (0.00%) | 10 (3.53%) | |||
| Radiation: | 0.538 | 0.142 | 0.254 | ||||||
| No | 22 (75.9%) | 650 (68.7%) | 18 (85.7%) | 452 (68.2%) | 4 (50.0%) | 198 (70.0%) | |||
| Yes | 7 (24.1%) | 296 (31.3%) | 3 (14.3%) | 211 (31.8%) | 4 (50.0%) | 85 (30.0%) | |||
| Chemotherapy: | 0.902 | 0.573 | 0.715 | ||||||
| No | 12 (41.4%) | 364 (38.5%) | 10 (47.6%) | 259 (39.1%) | 2 (25.0%) | 105 (37.1%) | |||
| Yes | 17 (58.6%) | 582 (61.5%) | 11 (52.4%) | 404 (60.9%) | 6 (75.0%) | 178 (62.9%) | |||
| Mets_brain: | 1 | 1 | 0.309 | ||||||
| No | 28 (96.6%) | 910 (96.2%) | 21 (100%) | 639 (96.4%) | 7 (87.5%) | 271 (95.8%) | |||
| Yes | 1 (3.45%) | 36 (3.81%) | 0 (0.00%) | 24 (3.62%) | 1 (12.5%) | 12 (4.24%) | |||
| Mets_liver: | 0.433 | 0.33 | 1 | ||||||
| No | 21 (72.4%) | 601 (63.5%) | 16 (76.2%) | 420 (63.3%) | 5 (62.5%) | 181 (64.0%) | |||
| Yes | 8 (27.6%) | 345 (36.5%) | 5 (23.8%) | 243 (36.7%) | 3 (37.5%) | 102 (36.0%) | |||
| Mets_lung: | 1 | 0.793 | 0.429 | ||||||
| No | 22 (75.9%) | 715 (75.6%) | 17 (81.0%) | 504 (76.0%) | 5 (62.5%) | 211 (74.6%) | |||
| Yes | 7 (24.1%) | 231 (24.4%) | 4 (19.0%) | 159 (24.0%) | 3 (37.5%) | 72 (25.4%) | |||
| Survival_months | 26.1 (31.4) | 6.20 (8.10) | 0.002 | 29.0 (33.3) | 6.30 (8.29) | 0.005 | 18.8 (26.0) | 5.98 (7.64) | 0.208 |